Phase Change Materials based Tunable NEMS

基于相变材料的可调谐NEMS

• 批准号: EP/J00541X/1
• 负责人: Harish Bhaskaran
• 金额: $ 12.28万
• 依托单位: UNIVERSITY OF EXETER
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2011
• 资助国家: 英国
• 起止时间: 2011 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FJ00541X%2F1
• 关键词: Phase; Change; Materials; based; Tunable

Tunable resonators have wide ranging applications such as in positioning systems (eg. portable GPS) and in many satellite systems, as well as in almost all wireless devices such as the mobile phone. Better the resonator, more favorable it is for the application in terms of speed, as well as signal quality. MEMS and NEMS have potential for very high quality factors, which can be taken advantage of for designing such resonators. One of the important characteristics of a resonator is its ability to adjust its frequency quickly, so that it can lock in to a signal speedily. In this project we propose a novel NEMS resonator whose frequency can be tuned rapidly (on the order of a few nanoseconds). In addition, this resonator would use materials that have potentially dual-functionality, to help not only in tuning the frequency, but also in sensing the frequency. Such a resonator would reduce costs, take up very much less space than existing resonators, and would be much simpler to fabricate. Furthermore, this research project would shed light on physical mechanisms such as the piezoresistivity of phase change materials, as well as the mechanical properties of such materials.

可调谐谐振器具有广泛的应用，例如在定位系统（例如，便携式GPS）和许多卫星系统以及几乎所有的无线设备，例如移动的电话。谐振器越好，在速度和信号质量方面对应用越有利。MEMS和NEMS具有非常高的品质因数的潜力，这可以用于设计这样的谐振器。谐振器的重要特性之一是它能够快速调整其频率，从而可以快速锁定信号。在这个项目中，我们提出了一种新的NEMS谐振器，其频率可以快速调谐（在几纳秒的顺序）。此外，这种谐振器将使用具有潜在双重功能的材料，不仅有助于调谐频率，还有助于感测频率。这样的谐振器将降低成本，比现有的谐振器占用更少的空间，并且制造起来将简单得多。此外，该研究项目将揭示相变材料的压阻等物理机制，以及此类材料的机械性能。

项目成果

On-chip photonic synapse.

• DOI: 10.1126/sciadv.1700160
• 发表时间: 2017-09
• 期刊: Science advances
• 影响因子: 13.6
• 作者: Cheng Z;Ríos C;Pernice WHP;Wright CD;Bhaskaran H
• 通讯作者: Bhaskaran H

Study of Ge2Sb2Te5 properties for opto-electronic applications

Ge2Sb2Te5 光电应用特性研究

• 发表时间: 2016
• 作者: Gerardo Rodriguez-Hernandez

A Phase-Change Metamaterial-Based Dynamic Beam Steering Device

基于相变超材料的动态光束转向装置

• 发表时间: 2016
• 作者: Carlota Ruiz De Galarreta

Approximate Expressions for the Magnetic Potential and Fields of 2-D, Asymmetrical Magnetic Recording Heads

二维非对称磁记录头磁势和磁场的近似表达式

• DOI: 10.1109/tmag.2015.2492947
• 发表时间: 2016
• 期刊: IEEE Transactions on Magnetics
• 影响因子: 2.1
• 作者: Aziz M

Modelling Flexible and Wearable Electronics

柔性可穿戴电子产品建模

• 发表时间: 2016
• 作者: Arseny Alexeev